A. Lange & Söhne 1815 Up/Down 234.026 White Gold Silver Dial (2026)

The 1815 Up/Down 234.026 adds one indication to the time-only 1815: a power-reserve display marked AUF and AB, German for up and down, a form Lange used on its pocket watches as early as 1879. In White Gold, this is the 39 mm version A. Lange & Söhne established in 2013 for a model that first joined the 1815 family in the late 1990s, two years after the time-only 1815 of 1995.

On the Silver dial of solid silver, a small AUF/AB scale at 8 o'clock shows the state of wind, with AB for an unwound movement and AUF for a fully wound one, opposite a small seconds at 4 o'clock. The railway-track minute scale and Arabic numerals frame it. The 39 mm White Gold case is 8.7 mm high with a sapphire caseback showing the hand-wound movement, on a black alligator strap with a White Gold prong buckle.